Sensenig 83 Sil 



d. Failure of development of the optic nerves and its effect upon the 

 structure of the cortical and subcortical visual centers. Homo sapiens 

 (Primates) 



e. Causative factors underlying developmental anomalies. 



SHANER, R. F. Ph.D., F.R.S.C, Prof. — Dept of Anat., Univ. of Alberta, 

 Med! School, EDMONTON, Alberta. Canada 



a. A study of abnormal hearts in embryos corresponding to the third month 

 of human development. Sus scrofa (Artiodactyla) 



b. Study of a collection of abnormal embryos of an age corresponding to 

 the third month of human development with the aim of throwing light 

 on the development of various human abnormalities. Sus scrofa (Artio- 

 dactyla) 



c. Study of the development of truncus arteriosus persistens communis in 

 abnormal hearts. Sus scrofa (Artiodactyla) 



SHANNON, J. E. — Dept of Zool., Univ. of Connecticut, STORRS, Conn., 

 U.S.A. 

 a. Factors affecting reaggregation and segregated cells in tissue culture, 

 (in collaboration with H. CLARK) 



SHAPIRO, H. B.S.. A.M., Ph.D., Prof. — Nat. Inst, of Health. BETHES- 

 DA, Md, U.S.A. 

 (no data received over some years) 



SHAVER, J. R. A.B., Ph.D. — Dept of Zool.. Univ. of Missouri. CO- 

 LUMBIA, Missouri, U.S.A. 



a. Initial development (artificial parthenogenesis). Rana pipiens (Anura) 



b. Physiology of fertilization. Rana pipiens (Anura) 



c. Physiology of cleavage. Rana pipiens (Anura) 



d. Studies on effect of mitochondria on early morphogenesis. Rana pipiens 

 (Anura) 



SHEN, S. C. Ph.D. — Osborn Zool. Lab., Yale Univ., NEW HAVEN 11. 



Conn., U.S.A. 

 a. Development of the cholinergic system in brains. Ambystoma. Triturus 



and Rana (Amphibia) 

 SHULOV, A. Dr — Dept of Zoology. Hebrew Univ., JERUSALEM, 



Israel 

 a. Ecological conditions of development of the eggs. Artificially induced 



interruption of development (eggs) (The changes in yearly development 



cycles under influence of dryness or and humidity). Prionosthenus sp.. 



Anacridium aegyptium, Pareuprepocnemis syriaca, Pezotettix judaic a 



and Calliptamus sp. (Acrididae, Orthoptera) , Decticus albifrons (Tetti- 



goniidae, Orthoptera), Latrodectus XIII guttatus Rossi (Theridiidae, 



Araneida) 

 SIGOT, A. — Inst, de Zool., Lab. de Biol, gen., Fac. des Sci. de Strasbourg, 



12 Rue de I'Universite, STRASBOURG. France 

 a. Etude de la sensibilite hereditaire au gaz carbonique. Drosophila melano- 



gaster (Diptera) 

 SILeN, L. K. p. Fil. Dr — Zootom. Inst., Univ. of Stockholm, 116 Drott- 



ninggatan, STOCKHOLM, Sweden 

 a. Development of free stages including settling and m^etamorphosis. Pho- 



ronis hippocrepia, miilleri, pallida, ovalis (Phoronidea, Tentaculata) 



